Norlab Dye Donut

• A safe, non-toxic, biodegradable & water-soluble wax product, infused with concentrated dye & individually packaged.
• Ideal for large water-volume applications that require slower dilution and longer flow time studies.
• Apply to high volume sewer/storm drain tests, flow time studies, ocean flow mapping, lake/pond leak detection, pollution discharge/circulation studies.

Colors
Fluorescent Yellowgreen – Item# TRACER-C-YG
Fluorescent Red – Item# TRACER-C-RED 

Dosage

• Approximately 1 Dye Donut per 75,000 Gallons for light visual detection.
• Approximately 1 Dye Donut per 7,500 Gallons for strong visual detection.
• Dilution time is approximately 3-4 hours (up to 5-6 hours depending on water
  temperature.)

Note: due to many variables (amount of water, visible light, rate of flow, distance traveled, concentration of solids, user preference, etc.) additional dye might be required for a stronger visual detection.